Gasoline vending nozzle



Aug. 21, 1934. SCOTT 1,970,629

GASOLINE VENDING NOZZLE Filed Nov. 17, 1930 INVENTOR Henarzl: L 52702?BY :1 0r

ATTORN EYS Patented Aug. 21, 1934 UNITED STATES PATENT OFFICE 3 Claims.

The present invention pertains to a nozzle of a type particularlyadapted for delivering gasoline to automobiles that are parked withinbuildings.

Owing to the highly inflammable nature of the fumes and gases whichbecome mixed with air in a partially filled gasoline tank of anautomobile it is forbidden by insurance regulations in certainlocalities and prohibited by ventilation facilities in practically allgarages to fill the gas tank while the automobile is within a buildingfor it is obvious that the fumes which are expelled from the tank as thegasoline enters present a great fire hazard. The present inventiontherefore has as its primary object to devise a nozzle for deliveringgasoline to the tanks of automobiles in a manner whereby no fumes fromthe tank are expelled into the interior of the building and whereby itis impossible to overflow the tank.

Another object of the present invention is to devise a nozzle fordelivering gasoline which is pro-- vided with two valve controlledpassages andwitli a portion which engages the tank opening in a mannerto prevent gases or liquid from escaping through the tank opening aroundthe nozzle when gasoline is discharged from the nozzle. A pair ofseparate passages are provided in the nozzle and have synchronizedvalves so that when the gasoline enters the tank through one of thepassages the gas fumes pass out of the tank through the other passage.The gasoline passage is connected to a suitable source of supply and theother passage is connected to a vent pipe which is preferablyconstructed so that the top of the pipe discharges the fumes outside thebuilding and the bottom of the pipe is connected to an overflow tank forit is obvious that if the tank were completely filled and gasolinecontinued to discharge from the nozzle that the additional gasolineinstead of flowing onto the floor would flow out the passage that isprovided as an outlet for the gases or fumes.

With the above and other ends in view the invention consists in thematters hereinafter set I forth and more particularly pointed out in thetion of a nozzle having a modified form of sealing means; and l Fig. 5is a fragmentary longitudinal cross sec tional view of a furthermodification embodying the same principle.

Like characters of reference are employed throughout to designatecorresponding parts.

The numeral 1 indicates the body of the present nozzle which has acentral longitudinal partition 2 running the entire length thereof todivide the same into two passages. The discharge end 3 of the nozzle istapered and curved for a purpose which will become apparent as thedescription progresses.

Each passage is provided with a bored partition forming a valve seat 4and the valve 5 is ordinarily held against this seat by a compressedcoiled spring 6 which is in turn held in place by a pin 7. Adjacent thevalve stem 8 is mounted a bell crank lever 9 which butts against the endof the stem. The bell crank lever is connected by the link 10 to apivoted lever 11 having a thumb piece 12 and a coiled spring 13 tonormally force the end of the lever having the thumb piece upwardly andpermit the spring 6 to force the valve 5 on its seat 4 without anyresistance being offered thereto by the bell crank lever 9. When it isdesired to open the valve 5 however the thumb piece 12 is depressedwhich raises the link 10 and causes the bell crank 9 to rock so that itforces against the stem 8 and thereby forces the valve off its seat andcompresses the spring 6.

A hose 14 is connected to the nozzle on one side of the partition 2 andhas its opposite end connected to a suitable source of supply. A secondhose 15 is connectedlto the nozzle on the opposite side of the partitionand has its opposite end connected to a vent pipe.

The tapered or discharge end 3 of the nozzle is equipped with aresilient sleeve-like gasket 16, preferably formed of such material assponge rubber. When the nozzle is inserted in the opening 17 in thegasoline tank 18 the tapered portion will come into contact withithesides of the opening if it is shoved far enough therein and theresilient gasket permits the edges of the opening to so imbed themselvesin the gasket that it is impossible for any gases or fumes to escapethrough the opening around the nozzle.

In Fig. 4, the nozzle is identical in construction with that abovedescribed and has a tapered end which permits it to be wedged into thetank opening. In this case however, there is provided a cup like gasket19, also resilient and formed of sponge rubber or of material having thesame characteristics. It is apparent that when the end of the nozzle hasbeen inserted in the filling hole of the gasoline tank that the cup likegasket 19 will completely surround the hole and by compressing thisgasket against the wall of the tank a seal is provided that forces allthe gases and fumes which are expelled from the tank by the entrance ofgasoline to pass through the nozzle on one side of the partition 2 andout the hose 15 to the atmosphere outside of the building.

In Fig. 5 the discharge end of the nozzle is provided with a bell mouthwhich receives a resilient washer or ring-like gasket 21 which is formedof resilient material such as sponge rubber. In this embodiment thebell-mouthed portion of the nozzle is forced over the spout of thegasoline tank and the resilient gasket 21 seals the nozzle around thespout so that the gasoline enters the tank and the gas or fumes passthrough the passage provided therefor in the nozzle and out the pipe 15to the atmosphere.

Although specific embodiments of the present invention have beenillustrated and described it is to be understood that various changesmay be made within the scopeof the appended claims without departingfrom the spirit of the invention and such changes are contemplated.

What I claim is:

1. In a dispensing nozzle, a tubular 'nozzle member, a partitionarranged therein and extending the entire length thereof to provide apair of longitudinally extending unrestricted passages in the nozzlemember, one of which being adapted to communicate with a source ofliquid and the other being adapted to be connected with a vent pipe,valves in said passages, and synchro- I nized controlling mechanismsupported on said nozzle for operating said valves.

2. In a dispensing nozzle, a tubular nozzle member, a partition arrangedtherein and extending the entire length thereof to provide a pair oflongitudinally extending unrestricted passages in the nozzle member, oneof which being adapted to communicate with a source of liquid and theother being adapted to be connected with a vent pipe, a transversepartition also arranged in the nozzle member and provided with openings,normally seated valve element closing each of the openings, and a commonoperating mechanism supported on the nozzle member for simultaneouslyunseating the valves.

3. In combination, a dispensing nozzle having L. SCOTT.

